CO2 Emissions vs IPCC Scenarios

International Energy Agency (IEA) fossil fuel CO2 emissions data (black) compared to IPCC Emissions Scenarios (colors).  The IPCC Scenarios are based on observed CO2 emissions until 2000, at which point the projections take effect.  We are approximately on track with Scenario A2 from the IPCC Special Report on Emissions Scenarios (SRES).  Data sources: IEA CO2 emissions up to 2010 (2011 is 30.2 Gt, 2012 is 30.6 Gt); IPCC SRES data (Excel spreadsheet).

SkS Resources that use this Graphic

• IEA CO2 Emissions Update 2011 - the Good News and the Bad
• Lessons From Past Predictions: Ridley vs. IPCC and Hansen
• Climate Scientists Erring on the Side of Least Drama
• A Climate Sensitivity Tail
• An Updated Look at What Keystone XL and Alberta Tar Sands Mean for the Climate

Images

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• Vector (Windows Metafile WMF)

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